swallows punish sparrow nest

The text describes a conflict between swallows and a sparrow regarding a nest. A sparrow took possession of an old swallow's nest, laying its eggs inside. When the original swallows returned to claim their nest, a battle ensued. Despite their efforts, the swallows were unable to evict the sparrow. Frustrated, they held a council and decided that if they could not remove the sparrow, they would punish it instead. They returned with building materials and sealed the sparrow inside the nest, leaving it to perish for its unlawful occupation^[1].